Add debug info for link-time generated thunks.
Add debug info for method call thunks (currently unused) and
Baker read barrier thunks. Refactor debug info generation
for trampolines and record their sizes; change their names
to start with upper-case letters, so that they can be easily
generated as `#fn_name`.
This improved debug info must be generated by `dex2oat -g`,
the debug info generated by `oatdump --symbolize` remains
the same as before, except for the renamed trampolines and
an adjustment for "code delta", i.e. the Thumb mode bit.
Cortex-A53 erratum 843419 workaround thunks are not covered
by this CL.
Test: Manual; run-test --gdb -Xcompiler-option -g 160, pull
symbols for gdbclient, break in the introspection
entrypoint, check that gdb knows the new symbols
(and disassembles them) and `backtrace` works when
setting $pc to an address in the thunk.
Bug: 36141117
Change-Id: Id224b72cfa7a0628799c7db65e66e24c8517aabf
diff --git a/compiler/linker/mips64/relative_patcher_mips64.h b/compiler/linker/mips64/relative_patcher_mips64.h
index f478d7f..6d7c638 100644
--- a/compiler/linker/mips64/relative_patcher_mips64.h
+++ b/compiler/linker/mips64/relative_patcher_mips64.h
@@ -42,6 +42,7 @@
void PatchBakerReadBarrierBranch(std::vector<uint8_t>* code,
const LinkerPatch& patch,
uint32_t patch_offset) OVERRIDE;
+ std::vector<debug::MethodDebugInfo> GenerateThunkDebugInfo(uint32_t executable_offset) OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(Mips64RelativePatcher);